Question 2.2

2.2 Price versus size

You visit a local Starbucks to buy a Mocha Frappuccino®. The barista explains that this blended coffee beverage comes in three sizes and asks if you want a Tall, a Grande, or a Venti. The prices are $3.75, $4.45, and $4.95, respectively.

  1. What are the variables and cases?
  2. Which variable is the explanatory variable? Which is the response variable? Explain your answers.
  3. The Tall contains 12 ounces of beverage, the Grande contains 16 ounces, and the Venti contains 20 ounces. Answer parts (a) and (b) with ounces in place of the names for the sizes.